525 Results for "raspberry pi"

Identifying the ambient light sensor
Log from Put a Raspberry Pi CM4 into an original iPad
I've long been ignoring the ambient light sensor flex cable that's part of the iPad's display assembly. This connects to a 24-pin board-to-board connector on the logic board, pictured on the right edge here: Only 7 of the 24 pins are used: 3.0VSCL and...

Rev 1. PCB Assembly!
Log from CRAPi2040
Alright here we go! In case you missed the last log, here it is! Check it out because what you're about to see will make a lot more sense. Just like the last log, this log is going to be a retrospective, but I promise that the next CRAPi2040 log to grace...

How the Open Book Saves the World
Log from The Open Book
This is my submission for the Hackaday Prize: the ESP32-S3 based Open Book, an open hardware e-book reader that traces its origin to an ancient (or at least pre-pandemic) contest on this very web site. I designed the circuit board from scratch in KiCad...

hand soldering the raspberry to the baseboard
Log from PiBoy-Zero
similar projects that mounted the raspberry onto another pcb seem to reflow it in some way or another, with a hot-air rework station or similar tools. the same is doable with a good fine tipped soldering iron.these steps seemed to produce good results:1)...

Update: Now with 100% more WiFi!
Log from Open Source Science Tricorder
A quick update, with some of the high-risk high-gain aspects of the project!CC3000 WiFi Module and ChipKit Library PortIt's great to get out of your comfort zone and learn new skills or expand your familiarity with different aspects of design. For...

Testing the 14500 HAT-like UPS supply with high current demands
Log from Single-cell Li-Ion Powered UPS for Raspberry Pi
First of all, let me clarify that with normal 14500 cells in general, a heavily loaded (with attached USB devices) or tasked (running all cores to the max) Raspberry Pi Model 3 will not run for long on these cells, if at all. Regardless of the capacity...

Prototypes Updates - October 2021
Log from OSHW GNU/Linux PowerPC Notebook
Prototype delays due to electronic components shortagesAs already stated a few times, we are still victims of the electronics industry supply-chain difficulties. Back in July, we informed you that “98% of more than 2000 components are now secured...

A Long-Overdue Update - PCBs, Emulators And More
Log from The Last Psion
It's been a while, hasn't it? My work on this project has been relatively sporadic over the past 12 months. I've not found it easy to find a balance between this, my day job, and other projects I'm working on. As a result, there have been some relatively...

A Design Study
Log from VT-69 Handheld Terminal
I am designing the Dumb Badge with the idea that is a product, not a single one-off project. Being a product demands some work must go into the design, both the design language of the enclosure, but also the typefaces and logotype of the screenprinting...

Dear Judges…
Log from 60MHz Bandwidth 250Msps Probe-Scope
We know you have a lot of projects to get through, so we’ve put together this brief on our project as it pertains to the criteria of the Hackaday Prize. First of all, what is the Probe-Scope? It’s an open-source oscilloscope running at 250Msps with 60MHz...

BlueRetro Hardware Design
Log from BlueRetro
I always wait to have the software side significantly done before thinking about custom PCBs. I use DevKit as long as possible to allow for things to change easily. Also having something that looks like a final product in your hand before any software...

CM4 carrier board: chip shortage pain, bodges, silly mistakes, and tragedy.
Log from Put a Raspberry Pi CM4 into an original iPad
Chip shortage problems Shortly after my last project log, I tried to place an order for all the new components that I'd need for the next revision of my board, as well as re-stocking anything that I had already used most of. I discovered that my...

CM4 carrier board: chip shortage pain, bodges, silly mistakes, and tragedy.
Log from [HDP 2022] Put an RPi CM4 into an original iPad
Chip shortage problems Shortly after my last project log, I tried to place an order for all the new components that I'd need for the next revision of my board, as well as re-stocking anything that I had already used most of. I discovered that my...

Current Status of Design
Log from pandaPi
[10-07-2022]So, I started this project page quite a ways into my effort for the project. This project log is intended to review what I've done on the project to this point. With that said, here are some design aspects along with their status: Processing...

Rev. 1
Log from CRAPi2040
This is going to be somewhat of a retrospective. Over the past year I have been working full time and have been concurrently completing my graduate degree as a full time student . It's been a lot of work so if things get a bit disjointed in the narrative...

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